Explains how to interpret gel electrophoresis results to AP Biology students. Looks at both relative and absolute size interpretations for DNA fragments.
No. The two bands simply mean that their sample contained two pieces of DNA that were different sizes (one larger and one smaller). Gel electrophoresis does not tell you the source of the DNA, it only compares the size of different pieces.
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Does those 2 bands indicate, that there is DNA of two different lifeforms?
No. The two bands simply mean that their sample contained two pieces of DNA that were different sizes (one larger and one smaller). Gel electrophoresis does not tell you the source of the DNA, it only compares the size of different pieces.